By L1154 Battery 3281
Technical Parameters and Performance
Environment and Sustainability
The L1154 battery is known as a "micro button cell". Common commercial names include LR44, AG13, and A76. Its international standard model is IEC-LR1154. It follows the ANSI 1176 standard (alkaline system). Compared to similar products like SR44 (silver oxide system), L1154 is more cost-effective and works in a wider temperature range. It is suitable for non-precision instruments.
The battery has a diameter of 11.6±0.2 mm and a height of 5.4±0.2 mm. It weighs about 2.3 grams and uses a nickel-plated steel shell. The compact size fits over 80% of standard button battery slots, such as those in Casio calculators and Omron blood glucose meters (slot tolerance ±0.1 mm).
The cathode uses manganese dioxide, the anode uses zinc powder, and the electrolyte is alkaline potassium hydroxide (KOH). Compared to silver oxide batteries (like SR44), L1154 has lower voltage stability, but costs 40% less (based on market average). It is best for low to medium power devices.
The nominal voltage is 1.5V, and the typical capacity is 110mAh (at 20°C, constant resistance discharge to 0.9V). The discharge curve shows stable voltage at 1.4–1.3V for the first 70% of usage. Voltage drops faster after that. Devices should set a cut-off voltage ≥1.2V.
| Model | Chemical System | Use Case |
| SR44 | Silver Oxide | Precision Instruments |
| LR43 | Alkaline | Thin Devices |
| CR2032 | Lithium-Manganese | High Capacity Need |
L1154 is used in devices like Casio FX-991 calculators and Sony TV remotes. It is ready to use and has a self-discharge rate <3%/year (compared to 8% for similar lithium cells). It is ideal for occasional use devices like laser pointers, offering up to 200 hours of runtime per battery.
In devices like Yuwell blood glucose meters, L1154 supports over 300 tests (each using a 0.5mA pulse). Compared to silver oxide batteries, it costs less, but note: after 6 months of continuous use, capacity drops by 15%. For high-precision devices, use SR44 instead.
L1154 works well as a backup power source in LoRa IoT (Internet of Things) nodes. At -10°C, it keeps 85% capacity (lithium batteries keep only 50%). In a smart agriculture project, one battery powered a temperature-humidity sensor for 18 months (with 2 data transmissions per day).
| Parameter | Value Range |
| Nominal Voltage | 1.5V |
| Capacity | 100–150mAh |
| Operating Temp | -10°C to 60°C |
| Shelf Life | 3–5 years (room temp) |
At 25°C, the self-discharge rate is only 2% per year (silver oxide: 5%). In pulse discharge tests (50mA/0.1s), the voltage recovery time is <5 ms, better than 80% of other brands. But with continuous load >2mA, the usable capacity drops to 60% of the nominal value.
Watch for diameter tolerance. One hearing aid brand has only 0.05mm gap in its battery slot, causing fitting issues with some L1154 batteries. Choose models with gold-plated contacts (contact resistance <0.1Ω) for stable performance in cold conditions.
Life formula:
Expected Life (months) = Capacity (mAh) / [Daily Power Use (mA) × Usage Hours per Day] × 0.7
Example: An electronic scale (0.3mA/24h) has a theoretical life of 5 months, which may reduce to 4 months in colder temperatures.
Industrial-grade L1154 uses triple-seal technology with <0.01% leakage risk (standard type: 1.2%). It costs 30% more, but prevents damage and repair costs due to corrosion.
Certified by RoHS directive, with mercury content <0.0005%. Third-party tests show the steel case reaches ASTM B117 level 9 in a 200-hour corrosion test.
China has set up 23,000 community recycling points (78% coverage). Professional recycling needs epoxy resin sealing to prevent potassium hydroxide leaks from polluting the soil.
Rechargeable version LIR1154 can be reused 500 times, but costs 6x more than alkaline types. For devices using >1mA daily, it's better to use solar + supercapacitor systems.
L1154 and LR44 batteries share identical physical dimensions, voltage output, and chemical makeup, making them functionally equivalent and commonly substitutable in most applications.
LR44, AG13, and 357A serve as ideal substitutes for the L1154 battery, offering identical size, voltage, and compatibility across the majority of electronic devices.
The L1154 alkaline button cell battery provides multifunctional utility, consistent performance, and long-lasting durability. This compact power source is extensively utilized in miniature electronics including wristwatches, digital calculators, recreational gadgets, and similar low-energy consumption devices.
While LR44 and L1154 batteries share identical physical dimensions and voltage specifications, making them functionally interchangeable, minor variations in chemical composition and operational characteristics might exist between the two types.
L1154 batteries typically have a nominal voltage of 1.5 volts. As most brands and models adhere to this standardized voltage specification, they remain compatible with and can substitute other 1.5V alkaline button cell batteries like LR44 and AG13 in common applications.